Swiss research on the dangers of MRSA and MSSA from pig farms:
The last two sentences of this abstract sum it up. Unlike most countries, Britain’s
corrupt government veterinarians have failed to warn its farmers, hospitals and
public of known, widely and internationally acknowledged occupational and public health risks.
In fact, they have done everything they could to suppress news of the risks, or the existence of diseases, on pig farms in Britain becoming public knowledge.
The damages payable to anyone suffering from these omissions
and cover-ups are going to be eye-watering.
Concentration of
Airborne Staphylococcus aureus (MRSA and MSSA), Total Bacteria, and Endotoxins
in Pig Farms
1.
1.
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Received November 6, 2012.
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Accepted November 24, 2012.
Abstract
Pigs are very often colonized by Staphylococcus aureus and transmission of such
pig-associated S. aureus to humans can cause serious medical,
hygiene, and economic problems. The transmission route of zoonotic pathogens
colonizing farm animals to humans is not well established and bioaerosols could
play an important role. The aim of this study was to assess the potential
occupational risk of working with S. aureus-colonized pigs in
Switzerland. We estimated the airborne contamination by S.
aureusin 37 pig farms (20 nursery and 17 fattening units; 25 in
summer, 12 in winter). Quantification of total airborne bacterial DNA, airborneStaphylococcus sp. DNA, fungi, and airborne endotoxins
was also performed. In this experiment, the presence of cultivable airborne
methicillin-resistant S. aureus (MRSA) CC398 in a pig farm in
Switzerland was reported for the first time. Airborne methicillin-sensitive S.
aureus(MSSA) was found in ~30% of farms. The average airborne
concentration of DNA copy number of total bacteria and Staphylococcus
sp. measured by
quantitative polymerase chain reaction was very high, respectively reaching
values of 75 (± 28) × 107 and 35 (±
9.8) × 105 copy numbers
m–3 in summer
and 96 (± 19) × 108 and 40 (±
12) × 106 copy numbers
m–3 in winter.
Total mean airborne concentrations of endotoxins (1298 units of endotoxin m–3) and fungi
(5707 colony-forming units m–3) exceeded
the Swiss recommended values and were higher in winter than in summer. In
conclusion, Swiss pig farmers will have to tackle a new emerging occupational
risk, which could also have a strong impact on public health. The need to
inform pig farmers about biological occupational risks is therefore crucial.
